In the early 90s CHIP-8 was moderately popular on HP-48 calculators, most interpreter/emulators had no problem running at "full speed". I don't remember if the

In the early 90s CHIP-8 was moderately popular on HP-48 calculators, most interpreter/emulators had no problem running at "full speed". I don't remember if they were assembly or RPL/RPN or what. Superficially based on long distant memories CHIP-8 games somewhat resembled Atari 2600 games in resolution and gameplay. So they were a lot of fun for folks who measured fun via gameplay, but not so fun for folks who measured fun via pixel resolution or feature checklists, for example. The Atari 2600 comparison gives you some idea of the game genres available, some pacman and pong and driving games not so much FPS or platformers or fighting games. I am pretty sure there was a good space invaders. I have often thought it would make a decent assembly language training environment. People do like games and something like pong in CHIP-8 is a reasonable goal.